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Science Vocabulary Review

Across
An organism that makes its own food.
A ______ is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.
An animal that is hunted and killed by another for food.
Animals that can't make their own food so they eat plants or other animals.
In any ecosystem there are many food chains and, generally, most plants and animals are part of several chains. When you draw all the chains together you end up with a ____________..
Special decomposers used in composting.
__________ are microscopic single-celled organisms that thrive in diverse environments. They can live within soil, in the ocean and inside the human gut.
Another R of waste management. Examples of this R are using containers that can be washed and used again.
An animal that feeds on both plants and animals.
Down
An animal that eats other animals to survive.
An animal that only needs to feed on plants to survive.
A colourless, oderless and tasteless gas used as fuel to provide energy for homes and industries. Rotting vegetable can produce ______________.
An animal that breaks down dead organisms so that new plants can grow.
An animal that feeds on dead organisms.
One of the rs of waste management. Examples of this R is: buying food in bulk so there is less packaging with purchases or turning out the lights when you leave a room.
______ is a kind of living organism: yeasts, moulds and mushrooms are types of________.
Animals that hunt, or prey on, other animals.
A liquid toxic waste that gathers at the bottom of landfills.